EP0653366B1 - Procédé et dispositif pour nettoyer des tuyauteries de transport par soufflage - Google Patents

Procédé et dispositif pour nettoyer des tuyauteries de transport par soufflage Download PDF

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Publication number
EP0653366B1
EP0653366B1 EP94117731A EP94117731A EP0653366B1 EP 0653366 B1 EP0653366 B1 EP 0653366B1 EP 94117731 A EP94117731 A EP 94117731A EP 94117731 A EP94117731 A EP 94117731A EP 0653366 B1 EP0653366 B1 EP 0653366B1
Authority
EP
European Patent Office
Prior art keywords
air
compressed air
injector
blowing
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94117731A
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German (de)
English (en)
Other versions
EP0653366A3 (fr
EP0653366A2 (fr
Inventor
Wolfgang Krambrock
Harald Wilms
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zeppelin Systems GmbH
Original Assignee
Zeppelin Schuttguttechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Zeppelin Schuttguttechnik GmbH filed Critical Zeppelin Schuttguttechnik GmbH
Publication of EP0653366A2 publication Critical patent/EP0653366A2/fr
Publication of EP0653366A3 publication Critical patent/EP0653366A3/fr
Application granted granted Critical
Publication of EP0653366B1 publication Critical patent/EP0653366B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/52—Adaptations of pipes or tubes
    • B65G53/521—Adaptations of pipes or tubes means for preventing the accumulation or for removal of deposits

Definitions

  • the invention relates to a method and an apparatus for Blow out of delivery lines according to the generic terms of Claims 1 and 6 as e.g. are known from DE-A-3 820 710.
  • blower is usually used for this, that for the larger amount of gas and the lower pressure is designed.
  • This blower is used exclusively for Blowing the line used and thus represents a additional investment for the blower unit, the associated control as well as operating and maintenance costs represents.
  • the invention is therefore based on the object of a method and a device for blowing out delivery lines to propose, in which an additional blower to Blowing out the line is no longer necessary. Impairments when blowing out the line are said to be be avoided.
  • This task is based on a process and a Device for blowing out conveying lines introductively mentioned type by the characteristic features of the Claims 1 and 6 solved.
  • the device for performing this method draws is characterized in that an air quantity control unit, especially provided with one or more Laval nozzles which is connected in parallel to the injector. Furthermore suitable shut-off devices are attached so that the Compressed air either through one or more Laval nozzles or the injector flows so that the flow over the Injector an additional amount of air to enlarge the Air volume flow from the ambient air or a Gas reservoir is sucked.
  • the size of the Air volume flow adjustable via the shut-off devices so that for the promotion of bulk goods as well as for the Blow out the compressor the air volume flow and the size of the air pressure can be adjusted.
  • gas storage container especially nitrogen or carbon dioxide can be used. This is particularly so then advantageous if air and bulk goods are reactive Mixture result, for example in the case of flammable or explosive material, or a protective gas to prevent Moisture transfer or product changes used becomes.
  • one can Realization of the invention also used compressed air network can be fed from several compressors that together enough compressed air for delivery, but not for Generate free blowing of the line. Without one injector according to the invention would also be used several compressors in a compressed air network at least one additional blower for blowing out necessary to the Increase gas volume flow accordingly.
  • the delivery pressure of the compressed air is advantageously at pneumatic conveying of bulk goods over 1.5 bar, whereby the velocity of the gas volume flow when blowing out between 15 and 35 m / sec. lies. In other versions are however also delivery pressures and Speeds outside the ranges mentioned are possible.
  • a compressor 1 which has a Laval nozzle 2 connected to a pneumatic delivery line 3 is.
  • Bulk goods are conveyed in the conveyor line 3 are stored in a silo 4.
  • the silo 4 is over one Allotment member 5 connected to the delivery line 3. If that Silo 4 with the outside air, i.e. with the normal Atmospheric pressure, it is recommended that Allotment 5 to train as a rotary valve. It is but also possible, the silo 4 via a connecting line 6 to act on the delivery pressure of the delivery line 3. In this case, 5 instead of one as the allocation organ Cell wheel lock also a common shut-off device be used.
  • the Laval nozzle 2 acts as an air volume regulator Injector 7 connected in parallel. This injector 7 is over a silencer 8 and an intake filter 9 with the Outside air or a corresponding gas tank.
  • the injector 7 and the Laval nozzle 2 are parallel guided lines 10, 11 connected to the delivery line 3.
  • the injector 7 and the Laval nozzle 2 are each one Butterfly valve 12 upstream.
  • silo 4 in addition to the silo 4 another silo 13 with an additional one Cell wheel lock 14 coupled to the delivery line 3 the end of which is a receiving container 15.
  • the conveying line 3 from residues of bulk goods and from dust.
  • the higher pressure of the compressor 1 is used to to about the injector 7, the muffler 8 and that Intake filter 9 sucks gas, the gas volume flow without further ado Increase blower to blow free the delivery line.
  • the Butterfly valves 12 switched back to their starting position, so that a new conveying process, for example with a another product from the additional silo 13 via the Additional rotary valve 14 can be performed.
  • each compressor 1 provided that in this case a total of six different parallel branched lines 10, 11 with compressed air supply, which open into three different delivery lines 3.
  • each in its own Receiving container 15 open is in the three lines 11th one injector 7 is provided in each case.
  • the intake pipes of the Injectors 7 are brought together and flow together in the silencer 8, which in turn has an intake filter 9 is connected upstream.
  • Butterfly valves 12 'in the flow direction behind the Injectors 7 serve the different Decouple the delivery line strings from each other even if Bulk goods conveyed in a conveyor line, in a others, however, is blown out. Without these additional Butterfly valves 12 'could blow out a delivery line 3rd via the connection of the two injectors 7 through the common suction line to the silencer 8 Corresponding gas flow is fed to the second delivery line are being transported bulk goods. That would be natural undesirable and can be due to the additional butterfly valve 12 ' be prevented.
  • Fig. 3 is a rectangle with dashed lines modular design of a device according to the invention indicated.
  • the output of the modular unit is two Delivery lines 3.
  • the compressed gas flow from the compressor 1 is connected to two parallel circuits within the module distributed, each from a branch 10 with Laval nozzle 2 and a further branch 11 with injector 7 exist.
  • the Suction line of the injectors 7 open via a manifold back into a common silencer and a common Suction filter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Transport Of Granular Materials (AREA)

Claims (8)

  1. Procédé pour le nettoyage par soufflage de tuyaux de transport, notamment de tuyaux de transport (3) destinés au transport pneumatique lent de matières en vrac, caractérisé en ce que, pour le nettoyage par soufflage, on utilise la pression du compresseur (1) comme pression d'entraínement afin d'aspirer par l'intermédiaire d'un injecteur (7) de l'air supplémentaire provenant de l'environnement, le flux volumique de gaz disponible pour le nettoyage par soufflage devenant alors supérieur au flux d'air comprimé produit par le compresseur (1).
  2. Procédé selon la revendication 1, caractérisé en ce que l'on tire l'air comprimé non d'un compresseur mais d'un réseau d'air comprimé.
  3. Procédé selon l'une des revendications 1 et 2, caractérisé en ce que l'on utilise au lieu de l'air comprimé un autre gaz, en particulier de l'azote ou du dioxyde de carbone.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'on alimente le réseau d'air comprimé à partir de plusieurs compresseurs qui produisent ensemble suffisamment d'air comprimé pour le transport mais pas pour le nettoyage par soufflage simultané.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la pression de transport est supérieure à 1,5 bar et la vitesse lors du nettoyage par soufflage est comprise entre 15 et 25 m/s.
  6. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications 1 à 4, caractérisé en ce qu'une unité régulatrice de quantité d'air (2), notamment une ou plusieurs tuyères Laval, est branchée en parallèle avec un injecteur (7) et l'air comprimé s'écoule par l'intermédiaire d'organes d'obturation (12) appropriés soit par l'unité régulatrice de quantité d'air (2) soit par l'injecteur (7) de telle sorte que, lors de l'écoulement par l'injecteur, une quantité d'air supplémentaire est aspirée de l'environnement afin d'augmenter le flux volumique d'air.
  7. Dispositif selon la revendication 6, caractérisé en ce que, au lieu de l'air, un autre gaz, en particulier de l'azote ou du dioxyde de carbone, est utilisé.
  8. Dispositif selon l'une des revendications 6 et 7, caractérisé en ce que, pour plusieurs systèmes de transport, les postes de tuyères Laval et d'injecteurs sont regroupés en une unité, l'alimentation en air ou en gaz s'effectuant par l'intermédiaire d'un filtre d'aspiration commun.
EP94117731A 1993-11-15 1994-11-10 Procédé et dispositif pour nettoyer des tuyauteries de transport par soufflage Expired - Lifetime EP0653366B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4338965 1993-11-15
DE4338965 1993-11-15

Publications (3)

Publication Number Publication Date
EP0653366A2 EP0653366A2 (fr) 1995-05-17
EP0653366A3 EP0653366A3 (fr) 1995-08-23
EP0653366B1 true EP0653366B1 (fr) 1998-04-01

Family

ID=6502633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94117731A Expired - Lifetime EP0653366B1 (fr) 1993-11-15 1994-11-10 Procédé et dispositif pour nettoyer des tuyauteries de transport par soufflage

Country Status (3)

Country Link
US (1) US5704990A (fr)
EP (1) EP0653366B1 (fr)
DE (1) DE59405572D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111085516A (zh) * 2019-12-11 2020-05-01 陕西航天机电环境工程设计院有限责任公司 一种油污泥清理装置以及油污泥清理车

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20321762U1 (de) 1988-05-11 2009-08-27 H. Börger & Co. GmbH Vorrichtung zum Fördern von pulverförmigem Material
US5882366A (en) * 1997-06-06 1999-03-16 Atmi Ecosys Corporation Alternating wash/dry water scrubber entry
ATE252040T1 (de) * 1997-03-19 2003-11-15 Mai Internat Gmbh Fördereinrichtung und verfahren zum fördern von pulverförmigem oder körnigem material
SE9800033L (sv) * 1998-01-09 1999-05-31 Paer Wellmar Förfarande och anläggning för pneumatisk transport av fasta partiklar
JP2959763B1 (ja) * 1998-01-13 1999-10-06 島田理化工業株式会社 ウェーハ洗浄装置
DE10349871B4 (de) * 2003-10-25 2009-10-29 Coperion Gmbh Verfahren und Einrichtung zur Versorgung von mehreren pneumatischen Förder-Anlagen mit Fördergas unter Druck
US7950403B2 (en) * 2007-03-08 2011-05-31 The Coca-Cola Company Pipe clearing systems
CN101261495B (zh) * 2007-03-08 2010-10-06 英华达（上海）科技有限公司 吹风装置及其控制电路
US20100243252A1 (en) 2009-03-31 2010-09-30 Rajesh Luharuka Apparatus and Method for Oilfield Material Delivery
DE102011004035A1 (de) * 2011-02-14 2012-08-16 Illinois Tool Works Inc. Pulverpumpe zum Fördern von Beschichtungspulver
DE102013211550A1 (de) * 2013-06-19 2014-12-24 Gema Switzerland Gmbh Pulverfördervorrichtung insbesondere für Beschichtungspulver
CN103934242A (zh) * 2013-08-25 2014-07-23 贵州兴化化工股份有限公司 一种制备半水煤气系统的净化清洁方法
LU92813B1 (en) 2015-09-02 2017-03-20 Wurth Paul Sa Enhanced pressurising of bulk material in lock hoppers

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DE7129735U (de) * 1971-11-04 Maschinenfabrik Brieden K & Co Einrichtung zur Aufgabe von Zusatzluft in pneumatische Förderleitungen
CH436120A (de) * 1966-06-28 1967-05-15 Gema Ag Pneumatische Fördereinrichtung mit regelbarer Förderleistung
DE2334360B2 (de) * 1973-07-06 1977-04-07 Waeschle Maschinenfabrik Gmbh, 7980 Ravensburg Verfahren und einrichtung zum pneumatischen foerdern von feinpulverigen, zum ansetzen an die rohrwand neigenden produkten
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US4893966A (en) * 1987-07-07 1990-01-16 Franz Roehl Lock apparatus for introducing dry granular materials into a pneumatic conveying conduit and spray gun for such materials
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111085516A (zh) * 2019-12-11 2020-05-01 陕西航天机电环境工程设计院有限责任公司 一种油污泥清理装置以及油污泥清理车

Also Published As

Publication number Publication date
DE59405572D1 (de) 1998-05-07
EP0653366A3 (fr) 1995-08-23
EP0653366A2 (fr) 1995-05-17
US5704990A (en) 1998-01-06

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